The sample you've shared is Canon sRAW/mRAW (small raw). It is already debayered in camera, recording format is something like high-bit lossless JPEG (full resolution Y channel and subsampled Cb/Cr channels).
This format is indeed supported by LibRaw and rendered w/o problems: https://www.dropbox.com/s/tbcnn38wznojbpz/screenshot%202020-07-20%2018.5...
The sample you've shared is Canon sRAW/mRAW (small raw). It is already debayered in camera, recording format is something like high-bit lossless JPEG (full resolution Y channel and subsampled Cb/Cr channels).
This format is indeed supported by LibRaw and rendered w/o problems: https://www.dropbox.com/s/tbcnn38wznojbpz/screenshot%202020-07-20%2018.5...